US5275647AExpiredUtility

Ink compositions

89
Assignee: XEROX CORPPriority: Nov 25, 1991Filed: Nov 25, 1991Granted: Jan 4, 1994
Est. expiryNov 25, 2011(expired)· nominal 20-yr term from priority
C09D 11/30
89
PatentIndex Score
58
Cited by
8
References
5
Claims

Abstract

An ink composition comprised of a solution comprised of surfactant micelles colored with a dye or dyes covalently attached thereto, and an ink jet printing process utilizing such ink.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. An ink composition comprised of a solution comprised of surfactant micelles colored with a reactive dye or reactive dyes covalently attached thereto, and a humectant, and wherein the surfactant is comprised of a polyoxyethylene castor oil. 
     
     
       2. An ink composition comprised of a solution consisting essentially of a surfactant comprised of a water insoluble core and water soluble tails, and wherein there is attached to each tail a dye, and wherein the surfactant is a polyoxyethylene castor oil, a polyoxyethylene hydrogenated castor oil, or a polyethylene amine castor oil with a castor oil core substituted with polyethylene imine chains. 
     
     
       3. An ink in accordance with claim 2 wherein the core is comprised of hydrogenated castor oil. 
     
     
       4. An ink in accordance with claim 2 wherein the tails are comprised of polyoxyethylene chains. 
     
     
       5. An ink composition comprised of a solution comprised of surfactant micelles colored with a reactive dye covalently attached thereto, and wherein the surfactant is comprised of a polyoxyethylene hydrogenated castor oil.

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